public async void OnItemTapped(object sender, ItemTappedEventArgs e)
{
Coffee selectedCoffees = e.Item as Coffee;
if (selectedCoffees != null)
{
bool answer = await DisplayAlert("?", "Вы действительно хотите удалить выбранный товар", "Да", "Нет");
if (answer)
{
price -= selectedCoffees.Price;
if (price < 0)
{
price = 0;
}
cart.Text = "Корзина: " + price.ToString() + " руб.";
BagCoffee.Remove(selectedCoffees);
update();
}
}
}
public DetailPage(string name, string srcImage, string description, int price, List <Coffee> Bag, Coffee selectedCoffee, int priceBag)
{
var image = new Image {
Source = srcImage
};
this.selectedCoffee = selectedCoffee;
this.priceBag = priceBag;
this.price = price;
CoffeesBag = Bag;
Label header = new Label
{
VerticalTextAlignment = TextAlignment.Center,
HorizontalTextAlignment = TextAlignment.Center,
Text = name,
FontAttributes = FontAttributes.Bold,
FontSize = Device.GetNamedSize(NamedSize.Large, typeof(Label))
};
Label desc = new Label
{
VerticalTextAlignment = TextAlignment.Center,
HorizontalTextAlignment = TextAlignment.Center,
Text = description,
FontSize = Device.GetNamedSize(NamedSize.Large, typeof(Label))
};
cart = new Label
{
VerticalTextAlignment = TextAlignment.End,
HorizontalTextAlignment = TextAlignment.End,
Text = "Корзина: 0 руб.",
FontAttributes = FontAttributes.Bold,
FontSize = Device.GetNamedSize(NamedSize.Large, typeof(Label))
};
if (priceBag > 0)
{
cart.Text = "Корзина: " + priceBag.ToString() + " руб.";
}
Label lblPrice = new Label
{
VerticalTextAlignment = TextAlignment.End,
HorizontalTextAlignment = TextAlignment.End,
Text = price.ToString() + " руб.",
FontAttributes = FontAttributes.Bold,
TextColor = Color.Green,
FontSize = Device.GetNamedSize(NamedSize.Large, typeof(Label))
};
Button btnPut = new Button
{
Text = "Добавить в корзину",
BackgroundColor = Color.LimeGreen,
TextColor = Color.White,
BorderColor = Color.Gray,
BorderRadius = 6,
BorderWidth = 3,
Image = "bag.png",
HorizontalOptions = LayoutOptions.Center,
VerticalOptions = LayoutOptions.Center,
FontSize = Device.GetNamedSize(NamedSize.Large, typeof(Label))
};
Button back = new Button
{
Text = "назад",
BackgroundColor = Color.Red,
Image = "back_icon.png",
TextColor = Color.White,
FontSize = Device.GetNamedSize(NamedSize.Large, typeof(Label))
};
btnPut.Clicked += OnButtonClicked;
back.Clicked += OnButtonBack;
this.Content = new StackLayout {
Children = { back, header, image, desc, lblPrice, btnPut, cart }
};
}